facebookButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (fbProfile != null) {
                    //ХУЙГОВНОИМУРАВЕЙ
                    //ДЕЙСТИВЕ2
                } else {
                    LoginManager.getInstance().logInWithReadPermissions(MainActivity.this, Arrays.asList("public_profile"));
                }
            }
        });

//А ВОТ ВЫХОД
02-06 15:36:32.780 PST 2712-2712/? E/AndroidRuntime: FATAL EXCEPTION: main
                                                 Process: huy.soset.yourmom, PID: 2712
                                                 java.lang.RuntimeException: Unable to resume activity {huy.soset.yourmom/com.facebook.FacebookActivity}: The SDK has not been initialized, make sure to call FacebookSdk.sdkInitialize() first.
                                                     at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3103)
                                                     at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3134)
                                                     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2481)
                                                     at android.app.ActivityThread.-wrap11(ActivityThread.java)
                                                     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
                                                     at android.os.Handler.dispatchMessage(Handler.java:102)
                                                     at android.os.Looper.loop(Looper.java:148)
                                                     at android.app.ActivityThread.main(ActivityThread.java:5417)
                                                     at java.lang.reflect.Method.invoke(Native Method)
                                                     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
                                                     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
                                                  Caused by: The SDK has not been initialized, make sure to call FacebookSdk.sdkInitialize() first.
                                                     at com.facebook.internal.Validate.sdkInitialized(Validate.java:136)
                                                     at com.facebook.FacebookSdk.getApplicationContext(FacebookSdk.java:423)
                                                     at com.facebook.AccessTokenManager.getInstance(AccessTokenManager.java:84)
                                                     at com.facebook.AccessToken.getCurrentAccessToken(AccessToken.java:144)
                                                     at com.facebook.login.LoginClient.authorize(LoginClient.java:121)
                                                     at com.facebook.login.LoginClient.startOrContinueAuth(LoginClient.java:108)
                                                     at com.facebook.login.LoginFragment.onResume(LoginFragment.java:148)
                                                     at android.support.v4.app.Fragment.performResume(Fragment.java:2005)
                                                     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1108)
                                                     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1248)
                                                     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1230)
                                                     at android.support.v4.app.FragmentManagerImpl.dispatchResume(FragmentManager.java:2052)
                                                     at android.support.v4.app.FragmentController.dispatchResume(FragmentController.java:187)
                                                     at android.support.v4.app.FragmentActivity.onResumeFragments(FragmentActivity.java:462)
                                                     at android.support.v4.app.FragmentActivity.onPostResume(FragmentActivity.java:451)
                                                     at android.app.Activity.performResume(Activity.java:6336)
                                                     at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3092)
                                                     at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3134)
                                                     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2481)
                                                     at android.app.ActivityThread.-wrap11(ActivityThread.java)
                                                     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
                                                     at android.os.Handler.dispatchMessage(Handler.java:102)
                                                     at android.os.Looper.loop(Looper.java:148)
                                                     at android.app.ActivityThread.main(ActivityThread.java:5417)
                                                     at java.lang.reflect.Method.invoke(Native Method)
                                                     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
                                                     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)